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Full-Text Articles in Biomedical
The Influence Of A Crosshair Visual Aid On Observer Detection Of Simulated Fetal Heart Rate Signals, Rebecca A. Kennedy, Mark W. Scerbo, Brittany L. Anderson-Montoya, Lee A. Belfore Ii, Alfred Z. Abuhamad, Stephen S. Davis
The Influence Of A Crosshair Visual Aid On Observer Detection Of Simulated Fetal Heart Rate Signals, Rebecca A. Kennedy, Mark W. Scerbo, Brittany L. Anderson-Montoya, Lee A. Belfore Ii, Alfred Z. Abuhamad, Stephen S. Davis
Psychology Faculty Publications
Objective To determine whether a visual aid overlaid on fetal heart rate (FHR) tracings increases detection of critical signals relative to images with no visual aid.
Study Design In an experimental study, 21 undergraduate students viewed 240 images of simulated FHR tracings twice, once with the visual aids and once without aids. Performance was examined for images containing three different types of FHR signals (early deceleration, late deceleration, and acceleration) and four different FHR signal-to-noise ratios corresponding to FHR variability types (absent, minimal, moderate, and marked) identified by the National Institute of Child Health and Human Development (2008). Performance was …